EP0936442A1 - Sensor configuration method - Google Patents

Sensor configuration method Download PDF

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Publication number
EP0936442A1
EP0936442A1 EP99100998A EP99100998A EP0936442A1 EP 0936442 A1 EP0936442 A1 EP 0936442A1 EP 99100998 A EP99100998 A EP 99100998A EP 99100998 A EP99100998 A EP 99100998A EP 0936442 A1 EP0936442 A1 EP 0936442A1
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Prior art keywords
sensor
module
checksum
configuration data
data
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EP99100998A
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German (de)
French (fr)
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EP0936442B1 (en
Inventor
Hermann Jakob
Theodor Dr. Wanner
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Sick AG
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Schmersal-Eot & Co KG GmbH
Schmersal EOT GmbH and Co KG
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/008—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00 with calibration coefficients stored in memory
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown

Definitions

  • the invention relates to a method for configuring Sensors according to the preamble of claim 1.
  • Sensors are used to record measured variables (e.g. electromagnetic Radiation) and their conversion into electrical signals. Their applications range up to complex systems and plants, whereby often a variety of sensors is used.
  • the sensors Delivered data and signals are processed electronically. There thus the peripherals connected to each sensor and its task may vary, it is necessary to refer to the sensor to configure the respective periphery. It can be the case with the sensors for example, scanners.
  • the object of the invention is a method for configuration to create sensors according to the preamble of claim 1, in which no personal computer is required and confirmation of the configuration data is not required by the user.
  • configuration data from an output sensor transmit a sensor to be configured by means of a memory module, a falsification of data on a comparison of control sums, by which the data can be expanded.
  • a memory module connected to an output sensor. This can be done both in the non-configured State of the output sensor, for example when it is started up, as also in the configured state, i.e. at a later time.
  • the memory module is preferably from the outside into the output sensor can be used so that it does not for inserting the memory module must be opened.
  • configuration data can be stored in the memory module that contain the current configuration of the sensor.
  • the configuration data are checked within the memory module by a checksum (e.g. 16-bit CRC sum), which is used for later Reading the configuration data from the memory module one possible Make falsification of the configuration data recognizable.
  • a checksum e.g. 16-bit CRC sum
  • the memory module with one to be configured Sensor connected is also inserted preferably from the outside, d. H. without opening the sensor to be configured, feasible.
  • the memory module Data i.e. the configuration data and the checksum
  • the im Storage module automatically stores data stored in the sensor to be configured read after switching on.
  • the newly calculated checksum is then compared with the Memory module compared compared. If a falsification of the configuration data to be configured is available, the sensor detects that the stored checksum with the new calculated does not match, whereupon an error message is generated becomes. The error message causes the sensor outputs to be deactivated, so that a machine connected to the sensor does not start can.
  • the areas of application of the method include in particular also configuring sensors based on electromagnetic Radiation work.
  • sensors can be used, for example, to the presence or absence of an object in a monitored area determine.

Abstract

The method involves transferring configuration data from an output sensor to a sensor to be configured, which is connected to a module in the configured state. The current configuration data of the output module and an associated check sum are stored in the module and the data are input. A new check sum is computed for the input data and compared with the stored check sum. A fault message is generated if the check sums disagree.

Description

Die Erfindung betrifft ein Verfahren zum Konfigurieren von Sensoren nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for configuring Sensors according to the preamble of claim 1.

Sensoren dienen zur Aufnahme von Meßgrößen (z.B. von elektromagnetischer Strahlung) und zu deren Umwandlung in elektrische Signale. Ihre Anwendungen reichen bis hin zu komplexen Systemen und Anlagen, wobei oft eine Vielzahl von Sensoren eingesetzt wird. Die von den Sensoren gelieferten Daten und Signale werden elektronisch weiterverarbeitet. Da somit die an jeden Sensor angeschlossene Peripherie sowie seine Aufgabenstellung variieren kann, ist es erforderlich, den Sensor in Bezug auf die jeweilige Peripherie zu konfigurieren. Bei den Sensoren kann es sich beispielsweise um Scanner handeln.Sensors are used to record measured variables (e.g. electromagnetic Radiation) and their conversion into electrical signals. Their applications range up to complex systems and plants, whereby often a variety of sensors is used. The sensors Delivered data and signals are processed electronically. There thus the peripherals connected to each sensor and its task may vary, it is necessary to refer to the sensor to configure the respective periphery. It can be the case with the sensors for example, scanners.

Hierbei kann es sinnvoll sein, eine bereits bestehende Konfiguration eines Sensors auf einen anderen Sensor zu übertragen. Eine solche Übertragung der Konfiguration eines Ausgangssensors in einen zu konfigurierenden Sensor wird beispielsweise dann vorgenommen, wenn der Ausgangssensor defekt ist und daher ausgetauscht werden muß, oder wenn seine Konfiguration zur Übertragung in andere Sensoren dupliziert werden soll.It can be useful to have an existing configuration one sensor to another sensor. Such Transfer the configuration of an output sensor to one to be configured Sensor is made, for example, when the output sensor is defective and must therefore be replaced, or if its Configuration for transmission to other sensors can be duplicated should.

Es ist bekannt, die Konfiguration eines Ausgangssensors in einen zu konfigurierenden Sensor mittels eines Personalcomputers zu übertragen. Hierbei werden zunächst Konfigurationsdaten, die die zu übertragende Konfiguration des Ausgangssensors enthalten, auf einem Datenträger gespeichert. Der Personalcomputer liest diese Konfigurationsdaten anschließend ein und sendet sie an den zu konfigurierenden Sensor. Personalcomputer werden jedoch in solchen Applikationen als "unsicher" eingestuft. Wenn daher der zu konfigurierende Sensor in sicherheitskritischen Applikationen eingesetzt werden soll, muß jeder Parameter vom Anwender einzeln bestätigt werden, um eine mögliche Verfälschung der Konfigurationsdaten zu erkennen. Hierdurch wird das Verfahren sehr zeitaufwendig.It is known to configure an output sensor into one transmit sensor to be configured using a personal computer. First of all, configuration data that corresponds to the data to be transmitted Configuration of the output sensor included on a data carrier saved. The personal computer then reads this configuration data and sends it to the sensor to be configured. Personal computer are classified as "unsafe" in such applications. Therefore, if the sensor to be configured is in safety-critical Applications are to be used, each parameter must be selected by the user be confirmed individually in order to avoid possible corruption of the configuration data to recognize. This makes the process very time-consuming.

Aufgabe der Erfindung ist es, ein Verfahren zum Konfigurieren von Sensoren nach dem Oberbegriff des Anspruchs 1 zu schaffen, bei dem kein Personalcomputer benötigt wird und eine Bestätigung der Konfigurationsdaten durch den Anwender nicht erforderlich ist.The object of the invention is a method for configuration to create sensors according to the preamble of claim 1, in which no personal computer is required and confirmation of the configuration data is not required by the user.

Diese Aufgabe wird entsprechend dem kennzeichnenden Teil des Anspruchs 1 gelöst.This task is performed according to the characteristic part of the Claim 1 solved.

Hierbei werden Konfigurationsdaten von einem Ausgangssensor an einen zu konfigurierenden Sensor mittels eines Speichermoduls übertragen, wobei eine Verfälschung von Daten über einen Vergleich von Kontrollsummen, um die die Daten erweitert werden, erkennbar ist.Here configuration data from an output sensor transmit a sensor to be configured by means of a memory module, a falsification of data on a comparison of control sums, by which the data can be expanded.

Weitere Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung und den Unteransprüchen zu entnehmen.Further refinements of the invention are as follows Description and the dependent claims.

Die Erfindung wird nachstehend anhand eines Flußdiagramms näher erläutert.The invention is explained in more detail below with the aid of a flow chart explained.

Zu Beginn des dargestellten Verfahrens wird ein Speichermodul mit einem Ausgangssensor verbunden. Dies kann sowohl im nicht-konfigurierten Zustand des Ausgangssensors, etwa bei seiner Inbetriebnahme, als auch im konfigurierten Zustand, also zu einem späteren Zeitpunkt, erfolgen.At the beginning of the method shown, a memory module connected to an output sensor. This can be done both in the non-configured State of the output sensor, for example when it is started up, as also in the configured state, i.e. at a later time.

Vorzugsweise ist der Speichermodul von außen in den Ausgangssensor einsetzbar, so daß dieser zum Einsetzen des Speichermoduls nicht geöffnet werden muß.The memory module is preferably from the outside into the output sensor can be used so that it does not for inserting the memory module must be opened.

Solange der Speichermodul mit dem Ausgangssensor verbunden ist, können sämtliche Konfigurationsdaten im Speichermodul abgespeichert werden, die die aktuelle Konfiguration des Sensors enthalten. Die Konfigurationsdaten werden dabei innerhalb des Speichermoduls durch eine Kontrollsumme ( z.B. 16-Bit CRC Summe ) erweitert, die dazu dient, beim späteren Lesen der Konfigurationsdaten aus dem Speichermodul eine mögliche Verfälschung der Konfigurationsdaten erkennbar zu machen.As long as the memory module is connected to the output sensor all configuration data can be stored in the memory module that contain the current configuration of the sensor. The configuration data are checked within the memory module by a checksum (e.g. 16-bit CRC sum), which is used for later Reading the configuration data from the memory module one possible Make falsification of the configuration data recognizable.

Anschließend wird der Speichermodul mit einem zu konfigurierenden Sensor verbunden. Das Einsetzen des Speichermoduls ist ebenfalls vorzugsweise von außen, d. h. ohne Öffnen des zu konfigurierenden Sensors, durchführbar. Anschließend werden sämtliche im Speichermodul gespeicherten Daten, d.h. die Konfigurationsdaten sowie die Kontrollsumme, in den zu konfigurierenden Sensor eingelesen. Vorzugsweise werden die im Speichermodul gespeicherten Daten in den zu konfigurierenden Sensor automatisch nach dessen Einschalten eingelesen. Hierbei wird die den eingelesenen Daten entsprechende Kontrollsumme neu berechnet, wobei die Berechnung auf die gleiche Weise wie bei der im Speichermodul abgelegten Kontrollsumme erfolgt.Then the memory module with one to be configured Sensor connected. The memory module is also inserted preferably from the outside, d. H. without opening the sensor to be configured, feasible. Then all are saved in the memory module Data, i.e. the configuration data and the checksum, read into the sensor to be configured. Preferably, the im Storage module automatically stores data stored in the sensor to be configured read after switching on. Here, the one that is read in Data corresponding checksum recalculated, with the Calculation in the same way as for the one stored in the memory module Checksum done.

Die neu berechnete Kontrollsumme wird daraufhin mit der im Speichermodul gespeicherten verglichen. Wenn eine Verfälschung der vom zu konfigurierenden Sensor gelesenen Konfigurationsdaten vorliegt, stellt der Sensor fest, daß die gespeicherte Kontrollsumme mit der neu berechneten nicht übereinstimmt, woraufhin eine Fehlermeldung erzeugt wird. Die Fehlermeldung bewirkt ein Inaktivieren der Ausgänge des Sensors, so daß eine an den Sensor angeschlossene Maschine nicht anlaufen kann.The newly calculated checksum is then compared with the Memory module compared compared. If a falsification of the configuration data to be configured is available, the sensor detects that the stored checksum with the new calculated does not match, whereupon an error message is generated becomes. The error message causes the sensor outputs to be deactivated, so that a machine connected to the sensor does not start can.

Dadurch sind die um eine Kontrollsumme erweiterten Konfigurationsdaten als "sicher" einzustufen. Eine Bestätigung vom Anwender etwa beim Lesen der Konfigurationsdaten durch den zu konfigurierenden Sensor ist daher nicht notwendig, so daß der Anwender nicht aktiv in den Sicherheitsablauf eingebunden wird.This means that the configuration data is expanded by a checksum classified as "safe". A confirmation from the user, for example when reading the configuration data by the sensor to be configured is therefore not necessary so that the user is not actively in the Security process is involved.

Zu den Anwendungsgebieten des Verfahrens gehört insbesondere auch das Konfigurieren von Sensoren, die auf Basis elektromagnetischer Strahlung arbeiten. Solche Sensoren sind beispielsweise einsetzbar, um die An- oder Abwesenheit eines Objektes in einem zu überwachenden Raumbereich feststellen.The areas of application of the method include in particular also configuring sensors based on electromagnetic Radiation work. Such sensors can be used, for example, to the presence or absence of an object in a monitored area determine.

Claims (6)

Verfahren zum Konfigurieren von Sensoren, wobei Konfigurationsdaten, die eine bestehende Konfiguration eines Sensors enthalten, von einem Ausgangssensor in einen zu konfigurierenden Sensor übertragen werden, dadurch gekennzeichnet, daß der Ausgangssensor im konfigurierten Zustand mit einem Modul verbunden wird, welcher die aktuellen Konfigurationsdaten des Ausgangssensors sowie eine den Konfigurationsdaten entsprechende Kontrollsumme im Modul abspeichert, der Modul anschließend mit dem zu konfigurierenden Sensor verbunden wird, die im Modul gespeicherten Konfigurationsdaten in den zu konfigurierenden Sensor eingelesen werden und eine den eingelesenen Daten entsprechende neue Kontrollsumme berechnet wird, woraufhin die berechnete Kontrollsumme mit der im Modul gespeicherten Kontrollsumme verglichen und bei Nichtübereinstimmung der beiden Kontrollsummen eine Fehlermeldung erzeugt wird.Method for configuring sensors, wherein configuration data containing an existing configuration of a sensor are transmitted from an output sensor to a sensor to be configured, characterized in that the output sensor is connected in the configured state to a module which contains the current configuration data of the output sensor and saves a checksum corresponding to the configuration data in the module, the module is then connected to the sensor to be configured, the configuration data stored in the module is read into the sensor to be configured and a new checksum corresponding to the read data is calculated, whereupon the calculated checksum is compared with the Module saved checksum compared and an error message is generated if the two checksums do not match. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Sensoren Scanner verwendet werden.A method according to claim 1, characterized in that as Sensors scanners can be used. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Speichermodul von außen den Sensoren entnommen bzw. in diese eingesetzt wird.A method according to claim 1 or 2, characterized in that that the memory module from the outside of the sensors or in this is used. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der zu konfigurierende Sensor nach seinem Einschalten die im Modul gespeicherten Daten automatisch liest.Method according to one of claims 1 to 3, characterized in that that the sensor to be configured after switching on the automatically reads data stored in the module. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Sensor die in diesem gespeicherte Kontrollsumme mit der berechneten Kontrollsumme automatisch beim Lesen der im Speichermodul gespeicherten Daten vergleicht.Method according to one of claims 1 to 4, characterized in that that the sensor has the checksum stored in it the calculated checksum automatically when reading the in the memory module compares stored data. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Sensoren als Empfänger für optische Strahlung von Geräten verwendet werden, die die An- oder Abwesenheit eines Objektes in einem zu überwachenden Raumbereich feststellen.Method according to one of claims 1 to 5, characterized in that that the sensors as receivers for optical radiation from devices can be used, the presence or absence of an object in determine a room area to be monitored.
EP99100998A 1998-02-12 1999-01-21 Sensor configuration method Expired - Lifetime EP0936442B1 (en)

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EP1895329A2 (en) 2006-09-02 2008-03-05 Leuze lumiflex GmbH + Co. KG Device for recording objects in a surveillance range
CN114205174A (en) * 2022-02-17 2022-03-18 深圳市三江电气有限公司 Sensor for realizing multi-sensing data intersection transmission based on networking

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DE19805606A1 (en) 1999-09-02
EP0936442B1 (en) 2003-05-02
DE59905261D1 (en) 2003-06-05
US6321172B1 (en) 2001-11-20

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